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FlexRay 프로토콜을 이용한 차량용 SoC 고장 진단 기법
강승엽(Seung-Yeop Kang),정지훈(Ji-Hun Jung),박성주(Sung-Ju Park) 한국컴퓨터정보학회 2016 韓國컴퓨터情報學會論文誌 Vol.21 No.1
In this paper, we propose vehicle SoC fault diagnosis platform using FlexRay protocol in order to detect the faults of semiconductor control chip even after vehicle production. Before FlexRay protocol by sending NFI (Null Frame Indicator) bit among the header segment and a specific identifier in the payload segment of FlexRay frame, this technique can be distinguishable from normal mode and test mode. By using this technique, it is possible to detect the faults such as performance degradation of vehicle network system caused by the aging or several problems of vehicle semiconductor chip. Also high reliability and safety of vehicle can be maintained by using structural test for vehicle SoC fault detection.
Kang, Hye Jin,Lee, Seung-Sook,Byun, Byung Hyun,Kim, Kyeong Min,Lim, Ilhan,Choi, Chang Woon,Suh, Cheolwon,Kim, Won Seog,Nam, Seung-Hyun,Lee, Soon Il,Eom, Hyeon Seok,Shin, Dong-Yeop,Lim, Sang Moo Springer 2013 Cancer chemotherapy and pharmacology Vol.71 No.4
<P>A single treatment of I-131-rituximab in patients with B cell non-Hodgkin lymphoma (NHL) showed a modest rate of response (29 %) in a relatively short duration (median 2.9 months). On the basis of this result, we investigated whether repeated treatment with I-131-rituximab could improve the response. Thirty-one patients with relapsed or refractory B cell NHL received unlabeled rituximab (70 mg) immediately prior to the administration of a therapeutic dose of I-131-rituximab. The tumor response was evaluated 1 month later by contrast-enhanced F-18-fluorodeoxyglucose positron emission tomography/computed tomography. Radioimmunotherapy (RIT) was repeated at 4-week intervals. A total of 87 cycles of RIT were administered. Repeated RIT yielded twofold increases in response rate (68 %) and in median response duration (8.6 months). This protocol also induced a favorable response in patients with an aggressive histology compared to that induced by a single treatment (50 vs. 9 %, respectively, p = 0.063). The toxicities were principally hematologic with grade 4 thrombocytopenia occurring in 12 % and neutropenia occurring in 17 % of the 85 assessable cycles. Compared to a single treatment, repeated RIT with I-131-rituximab increased the response rate and duration for patients with relapsed or refractory B cell NHL, including those with an aggressive histology.</P>
In-decorated NiO Nanoigloos Gas Sensor with Morphological Evolution for Ethanol Sensors
Seung Yeop Yi,Chong Yun Kang,Young Geun Song,Gwang Su Kim 한국센서학회 2019 센서학회지 Vol.28 No.4
We investigated the facile and effective strategy for sensitive and selective C2H5OH sensors based on the In-decorated NiO nanoi- gloos. The In-decorated NiO nanoigloos is fabricated by RF sputtering using 750 nm-diameter polystyrene beads using a soft-template. The morphological evolution based on the Van der Drift model was generated through a heterojunction between In metal and NiO, resulting in a pyramidal rough surface. Upon decorating the In on the NiO surface, high sensitivity and selectivity to C2H5OH wereobserved, and gas sensing mechanism was demonstrated by a high surface-to-volume and double Schottky barrier. We are confidentthat the method presented in this study will have a significant impact on the fabrication of effective nanostructures and their application for the gas sensors.
냉각수 순환 가열 방식의 가열원 형상에 따른 우레아 해동 및 열전달 특성에 관한 수치적 연구
이승엽(Seung Yeop Lee),강경남(Kyoungnam Kang),김만영(Man Young Kim),이천환(Chun Hwan Lee) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
Urea-SCR system, which converts nitrogen oxides to nitrogen and water in the presence of a reducing agent, usually AdBlue urea solution, is known as a powerful NOx reduction system for mobile as well as stationary applications. In this work, numerical study of three-dimensional unsteady heating problems were analyzed to understand the melting and heat transfer characteristics such as liquid volume fraction, temperature profiles and generated natural convection behavior in urea solution by using the commercial software Fluent 6.3. After validating by comparing numerical and experimental data with pure gallium melting phenomena, numerical experiment for urea melting is conducted with three different coolant heating models. Finally, it can be found that the CH2 model, in which more coolant is concentrated on the lower part of the Urea tank, has relatively better melting capability than others.
미진동 발파용 New KINECKER-II 실용화에 관한 연구
장승호 ( Seung-ho Jang ),박희원 ( Hee-won Park ),임정혁 ( Jung-hyuk Lim ),이창엽 ( Chang-yeop Lee ),안봉도 ( Bong-do Ahn ),강대우 ( Dae-woo Kang ),이하영 ( Ha-young Lee ) 대한화약발파공학회 2017 화약발파 Vol.35 No.1
우리나라는 산지와 구릉지가 전 국토 면적의 70% 이상을 정하고 있어 국토 확장, 고속도로 건설, 지하철공사 등의 대형 토목사업과 도심지 아파트 신축과 재개발, 고층건물 신축 등 부지공사 과정에서 암반굴착이 불가피한 경우가 많다. 이러한 대 · 소형 공사 시 ~ 차질을 받는 경우가 많다. 이에 따라 소음과 지반진동을 감소시키는 발파방법의 적용이 필요하다. 이러한 경우에 적합한 발파방법으로 지금까지 미진동발파, 기계식 굴착공법(할암, Breaker 등), 유사 발파 공법(플라즈마, 겔파쇄 등)이 있다. 본 연구에서는 기존의 미진동 발파에서 사용되고 있는 New KINECKER-I의 순폭성과 배합비 등을 개선하여 경제성 및 시공성을 높인 New KINECKER-II의 특징과 성능을 알아보고 발파진동 추정식을 산출하여 표준 발파패턴 및 시공 방법을 제시하여 사용자의 제품 사용편의를 제공하고자 한다. 또한 연결캡을 사용하여 하나의 뇌관으로 공내 모든 폭약이 순폭됨을 확인하였다. Mountain and hill areas occupy by more than 70% in South Korea and Rock drilling should be applied in order to reduce noisy & vibration from massive civil engineering business such as road expansion, high-way construction, subway construction and construction of site renovation such as a newly-built & re-development of apartment, newly-built of high-rising building in downtown area. As Blasting noise & vibration such as vibration, noise, fly rock etc caused by blasting operation from large ·small scale construction occurs, neighboring residents who demand the compensation file a civil complaint so that the business reach a deadlock. As the excavation method for these areas, There are blasting of micro-vibration, mechanical excavation method(Rock splitter, Breaker etc), similar blasting method(plasma, gel fragmentation etc) to date. In this study, we are trying to find the feature & performance which get improved economic feasibility & construct ability through improving sympathetic detonation of New KINECKER-I used in blasting of micro-vibration & formulation and would provide convenience for use by introducing standard blasting pattern & construction method. Also, checked and confirmed all the blasting with connecting cap has been cleary detonated.